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[PATCH hurd 3/5] ext2fs: tune the size of the inode cache


From: Justus Winter
Subject: [PATCH hurd 3/5] ext2fs: tune the size of the inode cache
Date: Wed, 10 Dec 2014 17:21:57 +0100

The node cache uses a fixed number of buckets giving it a linear
access complexity, although with a small constant factor.  Paper over
this issue by increasing the number of buckets.

* ext2fs/inode.c (INOHSZ): Increase from 512 to 8192 entries.
---
 ext2fs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext2fs/inode.c b/ext2fs/inode.c
index ed78265..27530fb 100644
--- a/ext2fs/inode.c
+++ b/ext2fs/inode.c
@@ -39,7 +39,7 @@
 #define UF_IMMUTABLE 0
 #endif
 
-#define        INOHSZ  512
+#define        INOHSZ  8192
 #if    ((INOHSZ&(INOHSZ-1)) == 0)
 #define        INOHASH(ino)    ((ino)&(INOHSZ-1))
 #else
-- 
2.1.3




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